Quoted:
I still don't know how that's possible. The round takes all its energy and velocity in one direction, hits a plate and does a 180. Obviously it is I just don't understand the physics.
The closest thing I've seen in person is when I hit a plate at 1k with ball ammo and I found the steel core about 3 feet back from the plate.
But you don't know if it was the steel core of the bullet that came back at the shooter, or a piece of the iron/steel/whatever target he was shooting.
You also don't know the shape or the design of the target. It could have been a cast iron pot or engine block that exploded in all directions (cast iron is very hard, but also brittle) and one piece had enough energy to fly that 100-200yds back to the shooter.
Also keep in mind not all cores are the same hardness/density.
Ever shoot tracers at night with a .50? If you hit a rock or a hard surface, those things can fly just about anywhere...and in some very erratic "patterns."